Automatic scraping-machine.



I No. 821,583. PATENTED MAY 22, 1906.

J. F. COLEMAN. AUTOMATIC SORAPING MACHINE.

APPLICATION FILED AER.17, 1965- 4 SHEETS-SHEET l.

No. 821,588. PATENTED MAY 22, 1906.

J. F. COLEMAN. AUTOMATIOSORAPING MACHINE.

APPLICATION FILED APR.17,1905.

v 4 SHEETS-SHEET 2. 23 6'7 r, dicc l w w (gxmmb f No. 821,583 Y PATBNTEDMAY 22, 1906.

J. COLEMAN. AUTOMATIC SORAPING MACHINE.

APPLICATION FILED APR,17,1905.

4 SHEETS-SHEET 3.

' No. 821,583. PATENTED MAY 22, 1906.

J. F. COLEMAN. I AUTOMATIC SORAPING MACHINE.

APPLIOA'IION FILED APRIT, 1905.

4 SHEETS-SHEET 4,

UNITED s ATEs PATENT OFFICE.

. JOHN F. coLEiiAiv, or EVERETT, MAss cHusETrs.

AUTOMATIC SCRAPIING-MACHIINEQ Specification of Letters Patent.

Application filed April 17. 1905. Serial No. 255.867.

To Mlw/tom. it 11m 1 concern..-

Be it known that I, JOHN F. COLEMAN, a citizen of the United States,residing at Everett, in the county of Middlesex and State ofMassachusetts, have invented a new and useful AutomaticScraping-Machine, of which the following is a specification, referencebeing made therein to the accompanying drawings.

My invention relates to machines for scraping up snow, gravel, sand, andother similar wherever desired, and therebyeffect a large,

saving of the time and labor now expended in loading and unloading cartsand other devices employed in. removing these substances.

Broadly considered,'my device comprises a scraper mounted upon wheelsand provided with means whereby the scraper may belowered for thepurpose of loading and then raised and locked and also provided withmeans whereby the scraper may be unloaded.

The following is a clear description of my invention, reference beingmade to the accompanying drawings, in which- Figure 1 is a view inperspective of my machine with the scraper raised and locked. Fig. 2 isa rear view of the machine with the scraper lowered. Fig. 3 is a frontview of the same. Fig. 4 is a side elevation of the same. Fig.5 is alongitudinal sectional view of the sameon line 5 5 in Fig. 3. Fig. 6 isa plan view of the scraper, and Fig. 7 is a plan view of my machine.

Similar numbers refer to similar parts throughout the several views. I

In the drawings is shown a frame-body mounted upon front wheels 2 2 andrear wheels 3 3, adapting it to bemoved over the ground like a wagon.The frame-body consists of two horizontal bars 4 and 5, oined togethernear their forward ends by a crossbar 6 and in the rear by two braces 7and 8, which have downwardly-extending sides rovided with slots 9 9,each brace resemhling an inverted letter U. In the rear the frame-bodyrests upon a rear axle 10, which is arched to permit a scraper to beraised, as will hereinafter be explained, and on the axle 10 are mountedthe wheels 3 3. axle 12, upon which are mounted the wheels so mountedupon r0 A front 2 pivotallyadjusted to the forward cross-bar 6 by meansof a king-pin 14 and two angle-braces 1515. The forward axle 12 15provided witha pole 16 in ordergthat the device may be drawn byhorse-power. 7 Also to the cross-bar 6 is fastened a rightangled,

Patented May 22, 1906.

bar 20, provided with a cross-piecegl, upon which is mounted uponsprings 22 22 for the driver; but th1s 1s notamateria'l part of myinvention, and the. dr vers seat may be mounted upon the machine in anysuitable manner.

Beneath the. rear axle 10 and .the two braces 7 and 8 is suspended, bymeansof vanous connections, a scraper 30, which may be raised or loweredas desired; The scraper 301s rectangular in form, having sides 31. 31,

and a tail-board 32; but the forwardfend 33 is open, and at that pointthesides 31.31 flare.

outwardly for the purposes of gathering in" material and protecting themechanism; on

the sides of the scraper.

In order that the scraper whenffilled maybe easily unloaded, I rovide inthe bot tom of the scrapera plura ity of doors 34 34,

be opened or closed b turning the said rods,

and when opened t e load, is discharged through the bottom ofthe scraer. To facili:

is loaded, I mount the doors off-center on the rods 35 35 in such amanner that whenthe doors are opened only a. small portion of eachdoorturns upwardly into the material, which arrangement materiallydecreases the resistance which the load would otherwise offer totheopeningofthe doors.

s 35 35 thatithey may.

5 tate opening the doors 34 34 w en the scraper.

For the purpose of opening all the doors 1 simultaneously, and by onemovement of a lever I extend the rods 35 35 throughone side of thescraper30 and turn them upwardly to form arms 36 36, the rearmost armbeing further lengthened into a lever 37, to which the other arms 36 36are connected by a rod 38. Any movement of the lever 37 causes a similarmovement of the arms 36 36, and by pushin the lever. 37 in one directionor the other al the doors in the loottomof the scraper aresimultaneously opened or.

, closed, as the case may be.

For the purpose of supporting the scraper 50, provided with studs 51 51at their and raising, and lowering it when desired I provide thefollowing means: Tothe sides. I 3131 of the scraper 30 are rivetedguides 50 the slots 9 9 of the braces 7 and 8, and thus permit thescraper to be raised and lowered vertically. In addition thereto I provde two uprights 52 52, one riveted to each s de 31 of the scraper 30 andeach provided with prongs 53 53, which inclose and slide up and down onthe vertical side sections of the arched axle 10 as the scraper israised or lowered. Besides the above supports and guides I provide alsolevers 60 60, two on each side, the lower end of each being pivotallyconnected to the side 31 of the scraper by means of a bolt 61 and theupper end of each. being pivotally connected to a bell-crank lever 62 bya pin 63. The bell-crank levers 62 attached a small arm 66, one of saidarms having its other end pivotally connected to a lever 67, fixedlymounted on a shaft 68, which is supported by hangers 69 69 on theframe-beams 4 and 5. p The small arm 66 on the other side of the machinehas its other end ivotally attached to a lever 7 O, which is fixe 1ymounted on the shaft 68. By this arrangement any movement of the lever67 turns the shaft 68 and the lever 70 and moves all the bell-cranklevers 62 62 on both sides of the machine simultaneously; Thesmall arms66 66 act as flexible connections between the levers 67 and 70 and thebars 65 65 and permit the bell-crank levers 62 62 to swing up or downwhen the scraper 30 is lowered or raised.

In order to support and lock the scraper 30 when it is raised, I providelock-bars 80 on each side of the machine, pivoted on the sides of thebraces 7 and 8 at 81, adjacent to the slots 9 9, and having a projectionor spur 82 adapted to slide under the studbolts 51 51 and support thescraper 30 by means of the guides 50 50. On each side of the machine theupper ends of the pivoted lock-bars 8O 80 are connected by rods 83 83 inorder that the two lock-bars on each side ma be moved together. From theforward on of the rod 83 is a short rod 84, connected to a lever-beam85, which joins the rods 84 84 on both sides, so that any movement ofthe lever-beam 85 moves all the lock-bars simultaneously. Upon thelever-beam 85'is fixedly mounted a lever-arm 86, which is used to turnthe lever-beam and thereby lock or unlock the scraper. If it is desiredto operate the locking device from the drivers seat, a rod 87 connectsthe lever-arm 86 with a bell-crank lever 88, which is hung in the hanger89 under the drivers seat. The forward end of the bell-crank lever 88 iscon nected by a rod 90 and a cross-rod 91 to two bars 92 92, mounted at93 on the cross-bar 6. Beneath the forward ends of the bars 92 92 areinterposed coil-springs 94 94 for the purpose of keeping up the lowerend of the bellcrank lever 88, and thereby retain the lockbars 80 80 ina locked position. The free ends of the bars 92 92 are turned downwardlyto form catches 95 95, which engage and retain sliding bolts 97 97,mounted on the frame-beams 4 and 5. To the sliding bolts are joineddraw-bars 96 96, attached to the forward end of the scraper 30 andserving as additional supports. When the scraper is lowered, the slidingbolts 97 97 are released and slide rearward to the stops 98 98.

The operation of my machine is as follows: As shown in Fig. 1, thescraper 30 is inaraised position, and the machine may be drawn fromplace to place as is a wagon. In order to load, it is necessary to dropthe scraper, which result is secured by first releasing the stud-bolts51 51 from the lock-bars 80 80 and the draw-bars 96 96 from the catches95 95. This may be done either by the driver pressing the bar 91 downwith his foot, which releases the sliding draw-bars 96 96 and throughthe medium of the bell-crank lever 88 and rod 87 pulls forward the lever86, and thereby unlocks and releases the stud-bolts 51 51, or it may bedone by the operator standing at the side of the machine and throwingforward the lever-arm 86. In either case whether the operating force beapplied to the bar 91 or the lever 86 the same parts are set in motionand the same result is obtained. At the same time that the draw-bars 9696 and the studbolts 51 51 are unlocked the lever 67 should be pulled tothe rear, which throws the lower ends of the bell-crank levers 62 62forward and permits the other ends to descend and the scraper falls tothe ground of its own weight into the position shown in Figs. 4 and 5.While in this position the machine is drawn forward and the scraper 30scrapes up the material. It is to be noted that the levers 6O 60 and thebell-crank levers 62 62 are of such dimensions that when the scraper isupon the ground they lie in a straight line from 61 to 64 and act asadditional support to the scraper to withstand the extra strain due tothe scraping process. After the scraper 30 has been filled with materialit is raised by pushing the lever 67 forward, which turns the shaft 68and pulls down the forward ends of the bell-crank levers 62 62 throughthe medium of the lower part of lever 67, lever 70, arms 66 66, and bars65 65.

As the forward ends of the said bell-crank levers are drawn downwardlythe other ends thereof are raised, and thereby raise up the 51, when thescraper is raised, will slide up the forward faces of the lock-bars,press them backuntil the prongs 82 82 are passed, when the springs 94 94will cause the lock-bars to fly forward into a lockedpositionf. In'thisevent it is unnecessary to pull the lever-arm inacondition to beloadedagain.

The means heretofore descrlbed forraismg,

86to the rear, as the device automaticall Witlrthe scraper loaded,raised;

locks itself. andlocked the machine may thenbe drawn like a wagon to anylocality and the load deposited merely pulling: the lever 37 to therear, which'opensthe doors 34 34 and allows the load to drop through.After the scraper is unloadedthe doorsare closed b pushing forward thelever37, and the machmeis then of a scraper mounted on wheels andprovided 1 with means for opening and closing its bottom, means to lowerand to raise said scraper, and means to lock said scraper when raised.

2. In a scraping-machine, the combination of a suitable frame mountedupon wheels, a

- scraper hung in said frame and provided with means to open and toclose its bottom, means to lower and to raise said scraper, and means tolook said scraper when raised.

3. In a scraping-machine, the combination of a suitable frame mountedupon Wheels, a scraper provided with guides and adapted to move upwardlyand downwardly in said frame, means to unload said scraper through itsbase, means to lower and to raise said scraper, and means to lock saidscraper when raised.

4. In a scrapihg-machina'the combination of a frame mounted upon Wheels,a scraper provided with supporting-guides which are 1n moving engagementwith the sides of said frame, means to unload said scraper through itsbase, means to lower and to raise said scraper, and means to lock saidscraper when raised.

5. In a scraping machine, the combination of a frame mounted on wheels,and having depending slotted side braces, a scraper provided withsupporting-guides which move in said slotted side braces, means to lowerand to raise said scraper, and means to lock said scraper when raised.

6. In a scraping-machine, the combination of a frame mounted on wheelsand having depending slotted sides, a scraper having supporting-guideswhich move in the slots in said sides, said scraper being provided withmeans whereby its base may be opened or closed, means to lower and toraise said I pendingslotted sidebraces, a scraperprovided said scraperwhen raised.

scraper, and means to look said scraper when raised. 1 w In ascraping-machine, the combination of a frame mounted on wheels andhaving dewith supporting-guides which move in said lslotted side braces,a pluralityofjbell-crank levers, operatively connected tofsaid scraper,

to raise and to lower it andnieans to lock "combination of a framemountedon wheels andhaving de: pending side braces,a scraper hung plusrality of bell-crank. levers which are pivotally,

8C In a scraping-machine, th

attached to said frameand. whereby: said.

scraper maybe raised or lowered,mcansjto lock said scraper when raised,and meansto unloadsaid scraper through its base. f H I 9. In ascraping-machine, the co bination. of a frame mounted onwheeljsand'having depending'side braces, a scraper, provided withsupporting-guides engaging said side braces and hung on bell-cranklevers pivotallyat tached to said frame whereby "said scraper may beraised or lowered, means to operate said bell-crank levers, and means tolock said scraper when raised.

10. In a scraping-machine, the combina tion of a frame mounted onwheels, a scraper hung on bell-crank levers which are pivotally mountedon said frame, said scraper being provided with a bottom which may beopened or closed, meanswhereby said bellcrank levers may be operated toraise or to lower said scraper and means to lock said scraper whenraised.

11. In a scraping-machine, the combination of a frame mounted on wheelsand having depending side braces, a scraper having a bottom providedwith means for opening and closing it, su porting-guides for saidscraper engaging sai side braces, a plurality of bellcrank leverspivotally mounted on said frame and connected to said scraper, meanswhereby said bell-crank levers may be operated to raise or to lower saidscraper, and means to lock said scraper when raised.

12. In a scraping-machine, the combination of a frame mounted on wheelsand having depending slotted side braces, a scraper, guides supportingsaid scraper and in moving en agement with said slotted side braces, bel-crank levers pivotally mounted, on said frame and attached to saidscraper, means to Operate said bell-crank levers to raise or to lowersaid scraper, and means to lock said scraper when raised.

13. In a scraping-machinadhc combination of a frame mounted on wheelsand having depending slotted side braces, a scraper provided with meansfor unloading through its base, guides supportingsaid scraper and inmoving engagement with said slotted side braces, a plurality ofbell-crank levers, pivotally mounted on said frame, one end of eachbeing pivotally connected to said scraper, and the other end of eachbeing operatively connected to a lever, said lever to operate saidbell-crank levers to raise or to lower said scraper, and means to locksaid scraper when raised 14. In a scraping-machine, the combination of aframe mounted on wheels and having depending slotted side braces, ascraper, guides attached to said scraper and provided at their free endswith studs which move in a the slots in said side braces, a plurality ofscraper 1n a raised position, and a lever operatively connected to saidlock-bars to operate the same.

15. In a scraping-machine, the combination of a frame mounted on Wheelsand having depending slotted side braces, a scraper provided with meansfor unloading through its base, guides attached to said scraper andprovided at their free ends with studswhich move in the slots in saidside braces, a .plurality of bell-crank levers pivotally mounted on saidframe, one end of each being pivot-ally connected to said scraper andthe other end of each being operatively connected to a lever, said leverto operate said bell-crank levers to raise or to lowersaid scraper,lockbars pivotally mounted on said side braces and adapted. to engagesaid guide-studs to lock said scraper in a raised position, and a leveroperatively connected to said lock-bars to operate the same. i

In testimony whereof I have hereunto set my hand, in the presence of twosubscribing Witnesses, this the 10th day of March, 1905.

JOHN F. COLEMAN, Witnesses:

CHARLES F. RICHARDSON, E. F. NUIAC.

